Attachment for molders&#39; flasks.



No. 881,828. PATENTED m8181808.

I' JA. N.PBRKIN8.

ATTACHMENT T08. MvoLDERs' TLAsKs.

APPLICATION PILB SEPT. 4, 1907.

,4 fro/ME rs UNITED sTATEs PAENT OEEIOE.

`IOHN NICHOLAS PERKINS, OF RICHMOND, VIRGINIA, ASSIGNOR OF ONE-HALF TO LAWRENCE B. GRASBERGER, OF RICHMOND, VIRGINIA.

ATTACHMENT FOR HOLDERS FLASKS.

ASpecication.of Letters Patent.

Patented March 10, 1908.

Application filed September 4, 1907. Serial No. 391,353.

To #all whom it may concern:

-Be it yknown that I, JOHN NICHOLAS PER- KINs, a citizen of the United States, and a resident of Richmond, in the county of Henrico and State of Virginia, vhave invented new and useful Improvements in Attach.

ments for Molders Flasks, of which the following is a full, clear, and exact description.

This invention resides in certain new and yuseful im rovements in attachments for molders asks, relating more especially to improvements in the `socket members which are usually fixed `to `the side of the drag and receive the dowels or .pins attached to the cope and operating to direct and retain these parts ofthe molds in perfect register when they are assembled.

The obj ect primarilyof -the invention is yto provide a socket member ypreferably of an adjustable nature in which there will be no hanging or binding when separating the cope and drag, whereby they maybe freely taken apart and placed together. This object I accomplish by my invention without leaving any sidewise or endwise play between the cope and drag when connected, thus holding them in perfect register without danger of lateral displacement. f

Reference is to be had to the accompanying drawings forming a part of this speciiication, in which similar characters of reference indicate corresponding' parts in all the views:

Figure 1 is a side elevation of a mold showing the preferred embodiment of my improved attachment applied thereto; Fig. 2 is a plan of the mold shown in Fig. 1; Fig. 3 is a plan of the socket member on an enlarged scale, which is the principal feature of my invention; Fig. 4 is a side view of a doWel-pin which is attached to one ofthe mold sections and is received in the socket membersecured to the opposite mold section; Fig. 5 is a front elevation of a modified form of my improved socket member, and Fig. 6 is a further modiication of the same.

In order to illustrate the application of my invention, I have shown in Figs. 1 and 2 a molders ilask consisting ofa drag 10 and a is received in a socket member 13 fixed to :the drag when the mold sections are Vplaced together. This although being shown round may be of any other desired cross sectional shape.

The socket member 13 Vof my invention preferably comprises a bracket consisting yof two plates 14 and 15 disposed at substantially right an les to each otherythe plate 14 being provide with screw-holes or other devices for `fixing it to the side of the mold, and the plate 15, which projects from 4the side ofthe mold when attached thereto, being provided with ribs-16 at opposite sides on its upper face, which form a guideway for slidably receiving a guide-plate 17, the latter `being secured in adjusted position `by a set-screw 18 passing through a slot of, and threaded into, the plates, 17 and 15, respectively. The plate 15, adjacent to the vplate 14, is provided with an opening 1-9 of such extent and shape as to freely admit the iiask-.pin 112 when the mold sections are connected.

The' construction of the socket member thus far described is in the main old, in 'connection with which is the essential feature of my improvement, consisting of frictionless elements carried by the plate 17 and arran ed about the opening 19, these elements pre erably being in the nature of rollers 20 which have their opposite reduced ends journaled in bearings, and in that form of my invention illustrated in Figs. 1, 2 and 3, the said rollers are arranged at an angle to each other of substantially forty-five degrees. It is evident from this construction that when the socket members are applied to one of the mold sections, as illustrated in Fig. 2, a bearing on each of the flask-pins will be afforded at two points, which will prevent the cope and drag from being shifted relatively to each other in either an endwise or sidewise direction, thus securely holding these arts when assembled against any lateral disp acement. By means o the adjustment of the sliding-plate 17, the roller 2O may be set against the pins as firmly as desired.

In Fig. 5 I have illustrated a slightly modified form of the socket member 13, the same being in all respects like that shown in Figs. 1, 2 and 3, with the exception that the rollers 2()a instead of being arranged at an angle to each other and circumferentially grooved, are located at the outside of the opening 19 one above the other, and substantially parallel to the plate 14, and consequently to the side of the mold when the socket member is secured thereto.

Fig. 6 is a still further modification of my improvement, which is essentially the same as that shown in Figs. 1, 2 and 3, except that two sets of rollers are provided with one roller arranged above the other. With this construction it is not possi-ble to rock the top flask after it has been raised slightly.

It is obvious that other forms of my invention from those shown may be made, and I consider I am entitled to such modifications as fall within the scope of the annexed claims.

Having thus described 'my invention, I claim as new and desire to secure by Letters Patent:

1. A socket member for melders flasks comprising a bracket composed of two plates arranged at substantially right angles to each other, one of said plates being. adapted to be secured to the mold and the other of said plates having ribs at its opposite sides forming a guideway and provided with an opening, and a plate adjustable in said guideway having rollers arranged about said opening.

. 2. A socket member for melders flasks comprising a bracket having an opening, and a roller bearing carried by said bracket arranged about said o en ing.

3. A socket mem er for melders flasks comprising a bracket having an opening, a plate adjustable on the bracket, and rollers carried by the plate arranged about said opening.

4. A vsocket member for melders flasks comprising a bracket having an opening, and two rollers arranged at an angle to each other about said opening and carried by the bracket.

5. In a molders flask, mold sections, a flask-pin carried by one of' said sections, and a socket member fixed to the other 1n old. section havinfT roller elements for receiving and forming a earing for the pin.

6. In a molders flask, mold sections, a flask-pin carried by one of said sections, and a socket member fixed to the other mold scction having rollers arranged at an angle to each other for receiving and forming a bearing for the pin.

7. In a molders flask, mold sections, a flask pin carried by one of said sections, and a socket member carried by the other mold section having a roller for forming a bearing for the pin.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN NICHOLAS PERKINS.

Witnesses:

LAWRENCE B. GRAsBERGER, I. V. HUGHES. 

